Last week, RIM announced that it was delaying the launch of an upgraded operating system for its PlayBook computer tablet until February 2012, as it wasn’t up to its standards at this point.

The firm has also had a number of executives resign as it struggles to hold on to market share in the face of stiff competition from Apple Inc.’s iPhone and smartphones using Google Inc.’s Android software.

That rivalry led RIM in July to say it would cut its workforce by about 11 per cent in order to reduce costs.